140501155 has 12 divisors (see below), whose sum is σ = 170699040. Its totient is φ = 111019472.

The previous prime is 140501131. The next prime is 140501171. The reversal of 140501155 is 551105041.

It is a happy number.

140501155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140501155 - 2¹⁹ = 139976867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32406 + ... + 36484.

It is an arithmetic number, because the mean of its divisors is an integer number (14224920).

Almost surely, 2^140501155 is an apocalyptic number.

140501155 is a deficient number, since it is larger than the sum of its proper divisors (30197885).

140501155 is an frugal number, since it uses more digits than its factorization.

140501155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 140501155 is about 11853.3183117640. The cubic root of 140501155 is about 519.8682543460.

Adding to 140501155 its reverse (551105041), we get a palindrome (691606196).

The spelling of 140501155 in words is "one hundred forty million, five hundred one thousand, one hundred fifty-five".